Automotive gasketing has developed from the early days of copper, leather and basic cork to non-asbestos, silicones and a variety of metals.

The modern engine demands high pressure sealing and must cope with differential rates of expansion and contraction between flanges. Engines are constructed from alloys with less contact area for the gasket to do its job, but with greater energy output.

CYLINDER HEAD GASKETS
The development is toward embossed or laminated metal with selective coating and also flat metal covered with gasket materials, which are in turn, enhanced with silicones. The result is a gasket which conforms to surface irregularities which can accept surface movement, can seal under arduous conditions and can be easily removed. More use is being made of new materials and enhancing the gasket with silicon coating and silicon beads adds to improved performance of the gasket.

SUMP AND VALVE COVER GASKETS
Oil pan and valve covers in pressed metal format use a variety of rubber mouldings and CorkRubber provides a good seal. On cast aluminium types, non-asbestos materials are more applicable. (Refer to our product range and specification).

EXHAUST AND MANIFOLDS
Metal gasket composites (or metal clad jointing) allows for differential expansion rates between the manifold and engine whilst sealing exhaust gas at high temperatures.

SEALS
Range from standard NBR (Nitrile) to silicones and high temperature Viton and are sourced worldwide to suite the application.

Powerseal gaskets has over time established itself as a quality brand of gaskets. Currently enjoying distribution throughout Southern Africa, Powerseal is fast becoming the top local brand of automotive gaskets.